266

Names of 266

• Cardinal: 266 can be written as Two hundred sixty-six.

Scientific notation

• Scientific notation: 2.66 × 10²

Factors of 266

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 28

Divisors of 266

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 7 14 19 38 133 266
• Sum of all divisors σ(n): 480
• Sum of proper divisors (its aliquot sum) s(n): 214
• 266 is a deficient number, because the sum of its proper divisors (214) is less than itself. Its deficiency is 52

Bases of 266

• Binary: 100001010₂
• Hexadecimal: 0x10A
• Base-36: 7E

Squares and roots of 266

• 266 squared (266²) is 70756
• 266 cubed (266³) is 18821096
• The square root of 266 is 16.3095064303
• The cube root of 266 is 6.4312275913

Scales and comparisons

• 266 seconds is equal to 4 minutes, 26 seconds.
• To count from 1 to 266 would take you about two minutes.

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 266 cubic inches would be around 0.5 feet tall.

Recreational maths with 266

• 266 backwards is 662
• 266 is a Harshad number.
• The number of decimal digits it has is: 3
• The sum of 266's digits is 14
• More coming soon!